A 3D Lagrangian gradient smoothing method framework with an adaptable gradient smoothing domain‐constructing algorithm for simulating large deformation free surface flows

2019 ◽  
Vol 121 (6) ◽  
pp. 1268-1296 ◽  
Author(s):  
Zirui Mao ◽  
G. R. Liu
Keyword(s):  
Free Surface ◽  
Large Deformation ◽  
Free Surface Flows ◽  
Smoothing Method ◽  
Surface Flows ◽  
Gradient Smoothing

An Improved Moving Particle Semi-Implicit Method for Free Surface Flows

2014 ◽  
Vol 571-572 ◽  
pp. 682-687
Author(s):  
Qiao Rui Wu ◽  
Xiong Liang Yao
Keyword(s):  
Free Surface ◽  
Hydrostatic Pressure ◽  
Large Deformation ◽  
Pressure Oscillation ◽  
Free Surface Flows ◽  
Dam Break ◽  
Implicit Method ◽  
Surface Flows ◽  
Collision Model ◽  
Moving Particle

The objective of this study is to make some improvements to the original Moving Particle Semi-implicit method (MPS) for free surface flows. Compared to traditional mesh methods, MPS is feasible to simulate surface flows with large deformation, however, during the simulation; the pressure oscillation is quite violent, duo to misjudgment of surface particles as well as particles gathering together. To modify this problem, a new arc method is applied to judge free surface particles, and a collision model is introduced to avoid particles from gathering together. Hydrostatic pressure and classical dam break are investigated by original and improved MPS. The results verify that improved MPS method is more effective for free surface flows.

scholarly journals Viscous free-surface flows past cylinders

2020 ◽  
Vol 5 (8) ◽  
Author(s):  
Edward M. Hinton ◽  
Andrew J. Hogg ◽  
Herbert E. Huppert
Keyword(s):  
Free Surface ◽  
Free Surface Flows ◽  
Surface Flows

scholarly journals Modelling segregation of bidisperse granular mixtures varying simultaneously in size and density for free surface flows

2021 ◽  
Vol 918 ◽  
Author(s):  
Yifei Duan ◽  
Paul B. Umbanhowar ◽  
Julio M. Ottino ◽  
Richard M. Lueptow
Keyword(s):  
Free Surface ◽  
Free Surface Flows ◽  
Surface Flows ◽  
Granular Mixtures

Abstract

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